PMID- 33329354 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201218 IS - 1664-2295 (Print) IS - 1664-2295 (Electronic) IS - 1664-2295 (Linking) VI - 11 DP - 2020 TI - Hemodynamic Effect of the Last Finishing Coils in Packing the Aneurysm Neck. PG - 598412 LID - 10.3389/fneur.2020.598412 [doi] LID - 598412 AB - Background: Using the finishing coils to densely pack the aneurysm neck is necessary. However, the exact hemodynamic effect of finishing coils in packing the aneurysm neck is unknown. Objective: To evaluate the hemodynamic characteristics of finishing coils to densely pack the aneurysm neck, using finite element method simulation. Methods: A computational study was performed based on a 44-year-old female patient with an unruptured wide-necked carotid-ophthalmic artery aneurysm treated with low-profile visualized intraluminal support stent-assisted coil embolization. Four computational fluid dynamics models including pre-treatment, post-stenting, common stent-assisted coil embolization (SACE), and common SACE with finishing coils were evaluated qualitatively and quantitatively. Results: Compared with the baseline of pretreatment model (100%), sac-averaged velocity in post-stenting, common SACE, and common SACE with finishing coil models decreased to 95.68%, 24.38%, and 13.20%, respectively; high flow volume (>0.1 m/s) around the aneurysm neck decreased to 92.19%, 9.59%, and 5.57%, respectively; and mean wall shear stress increased or decreased to 107%, 25.94%, and 23.89%, respectively. Conclusion: Finishing coils to densely pack the aneurysm neck can generate favorable hemodynamic modifications, which may decrease the recurrence. CI - Copyright (c) 2020 Wan, Lu, Huang, Ge, Jiang, Li, Leng, Xiang and Zhang. FAU - Wan, Hailin AU - Wan H AD - Huashan Hospital, Fudan University, Shanghai, China. FAU - Lu, Gang AU - Lu G AD - Huashan Hospital, Fudan University, Shanghai, China. FAU - Huang, Lei AU - Huang L AD - Huashan Hospital, Fudan University, Shanghai, China. FAU - Ge, Liang AU - Ge L AD - Huashan Hospital, Fudan University, Shanghai, China. FAU - Jiang, Yeqing AU - Jiang Y AD - Huashan Hospital, Fudan University, Shanghai, China. FAU - Li, Gaohui AU - Li G AD - ArteryFlow Technology Co., Ltd, Hangzhou, China. FAU - Leng, Xiaochang AU - Leng X AD - ArteryFlow Technology Co., Ltd, Hangzhou, China. FAU - Xiang, Jianping AU - Xiang J AD - ArteryFlow Technology Co., Ltd, Hangzhou, China. FAU - Zhang, Xiaolong AU - Zhang X AD - Huashan Hospital, Fudan University, Shanghai, China. LA - eng PT - Journal Article DEP - 20201120 PL - Switzerland TA - Front Neurol JT - Frontiers in neurology JID - 101546899 PMC - PMC7714910 OTO - NOTNLM OT - coiling OT - hemodynamics OT - intracranial aneurysms OT - recurrence OT - stent EDAT- 2020/12/18 06:00 MHDA- 2020/12/18 06:01 PMCR- 2020/11/20 CRDT- 2020/12/17 05:49 PHST- 2020/08/24 00:00 [received] PHST- 2020/10/15 00:00 [accepted] PHST- 2020/12/17 05:49 [entrez] PHST- 2020/12/18 06:00 [pubmed] PHST- 2020/12/18 06:01 [medline] PHST- 2020/11/20 00:00 [pmc-release] AID - 10.3389/fneur.2020.598412 [doi] PST - epublish SO - Front Neurol. 2020 Nov 20;11:598412. doi: 10.3389/fneur.2020.598412. eCollection 2020.